Datalink security in the L-band digital aeronautical communications system (LDACS) for air traffic management

Bilzhause, Arne; Belgacem, Boutheyna; Mohamad, Mostafa; Gräupl, Thomas

doi:10.1109/maes.2017.160282

Cited by 22 publications

(34 citation statements)

References 16 publications

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“…In figure 4 we summarize the data flow between entities and the communication between LDACS devices. In accordance to previous work [6], we argue that placing protection mechanisms in the link management entity and sub-network protocol of the LDACS protocol stack will be most efficient in securing LDACS. The data link service is thereby the intermediate entity in distributing security data between the link management entity and the sub-network protocol.…”

Section: Approaches For Implementing Ldacs Securitysupporting

confidence: 87%

“…To provide these services, a stable and secure network connection is required, thus leaving us with five objectives for securing LDACS. These were first pointed out by Bilzhause et al [6]:…”

Section: A Ldacs Security Objectivesmentioning

confidence: 91%

“…In the reverse link different aircraft are separated in time and frequency using a combination of Orthogonal Frequency-Division Multiple Access (OFDMA) and Time-Division Multiple-Access (TDMA). Aircraft thus transmit discontinuously on the reverse link with radio bursts sent in precisely defined transmission opportunities allocated by the ground-station [6]. The data-link layer provides the necessary protocols to facilitate concurrent and reliable data transfer for multiple users.…”

Section: B Ldacs Protocol Layer In the Aircraft And Ground-stationmentioning

confidence: 99%

“…From the objectives we can now define security functions that should be integrated in the LDACS cybersecurity architecture. Here we give the formal definition by the Internet Engineering Task Force (IETF) [45] of the terminology, printed in cursive characters, and put the definitions in an LDACS context by using [6], [37]:…”

Section: B Ldacs Security Functionsmentioning

confidence: 99%

“…Action plan 17 sparked the development of new systems based on the identified necessities and desired features. To provide long term, scalable growth of air transportation and to enable new air traffic management services and technologies in the future, the introduction of computerized air traffic management applications and digital data communications is required [5], [6]. Hence, analogue systems have to be augmented by digital means as large parts of aeronautical communications of tomorrow will be running on IP-based networks [7].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Cybersecurity Architecture for the L-band Digital Aeronautical Communications System (LDACS)

Mäurer

Bilzhause

2018

2018 IEEE/AIAA 37th Digital Avionics Systems Conference (DASC)

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With air transportation growing and current civil aeronautical communication systems reaching their capacity limit in high density areas, the need for new aeronautical communication technologies becomes apparent. The biggest challenge in recent years is the transition from analogue voice to digital data communication and the related trend towards an increased autonomous data processing. A promising candidate for the digital future communication infrastructure in continental areas is the terrestrial long-range L-band Digital Aeronautical Communications System (LDACS), which is currently in the process of being standardized by the International Civil Aviation Organization (ICAO). As safety and security are strongly intertwined in civil aviation, every installation of LDACS requires protection against cyber-attacks. This paper introduces a cybersecurity architecture for LDACS and proposes suitable security algorithm, which can achieve the security objectives on top of the architecture. Therefore we integrate new security functions within the existing protocol stack of LDACS. We provide an architecture for user data encryption, data integrity, authenticated key agreement, entity authentication, broadcast channel protection, and key and access management.

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Section: Approaches For Implementing Ldacs Securitysupporting

confidence: 87%

Section: A Ldacs Security Objectivesmentioning

confidence: 91%

Section: B Ldacs Protocol Layer In the Aircraft And Ground-stationmentioning

confidence: 99%